Shakil and Ullah were boarding a flight to Pakistan at Manchester Airport when they were detained in March. Saleem was arrested at an address in Leeds. Four bombers died in the blasts.

“The allegation is that they were involved in reconnaissance and planning for a plot with those ultimately responsible for the bombings on the 7 July before the plan was finalized,” said Sue Hemming, head of the Counter Terrorism Division of the Crown Prosecution Service.